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Finding the Fourth Proportional to 330,754.92, 456,628.80 and 253,084.14

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Solution

The fourth proportional to 330,754.92, 456,628.80 and 253,084.14 is: 349,399.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,754.92 : 456,628.80 = 253,084.14 : x
  2. Step 2: Convert to fraction form
    330,754.92/456,628.80 = 253,084.14/x
  3. Step 3: Cross multiply
    330,754.92x = 456,628.80 × 253,084.14
  4. Step 4: Simplify right side
    330,754.92x = 115,565,507,147.23
  5. Step 5: Solve for x
    x = 115,565,507,147.23/330,754.92
  6. Step 6: Final answer
    x = 349,399.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.